Employee Benefit Plans - Change in Projected Benefit Obligation, Plan Assets and Net Funded Status (Details) - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Change in projected benefit obligation
Benefit obligation at the beginning of the year	$ 126,227,000	$ 144,939,000
Interest cost	4,236,000	5,222,000
Actuarial (gain) loss	13,994,000	7,260,000
Benefits paid	(6,045,000)	(6,746,000)
Pension settlement	0	(24,448,000)
Other - Plan merger	0	0
Projected benefit obligation at the end of the year	138,412,000	126,227,000
Change in plan assets
Fair value of plan assets at the beginning of the year	79,189,000	104,559,000
Actual return on plan assets	3,621,000	3,313,000
Employer contributions	3,054,000	3,325,000
Benefits paid	(6,045,000)	(6,746,000)
Pension settlement	0	(25,262,000)
Other - Plan merger	0	0
Fair value of plan assets at the end of the year	79,819,000	79,189,000
Funded status at end of year (underfunded) overfunded	(58,593,000)	(47,038,000)
Amounts recognized in consolidated balance sheets
Noncurrent liabilities	(58,593,000)	(47,038,000)
Amounts Recognized in Balance Sheet	(58,593,000)	(47,038,000)
Amounts recognized in balance sheet
Net loss	63,945,000	50,645,000
Total accumulated OCI (not adjusted for applicable tax)	63,945,000	$ 50,645,000
Weighted average assumptions used to determine benefit obligations
Discount rate		4.05%
Farmer Brothers Plan
Change in projected benefit obligation
Benefit obligation at the beginning of the year	0	$ 137,175,000
Interest cost		2,722,000
Actuarial (gain) loss		(1,571,000)
Benefits paid		(3,574,000)
Pension settlement		(3,162,000)
Other - Plan merger		(131,590,000)
Projected benefit obligation at the end of the year		0
Change in plan assets
Fair value of plan assets at the beginning of the year	0	97,211,000
Actual return on plan assets		(6,236,000)
Employer contributions		1,525,000
Benefits paid		(3,574,000)
Pension settlement		(3,162,000)
Other - Plan merger		(85,764,000)
Fair value of plan assets at the end of the year		0
Funded status at end of year (underfunded) overfunded		0
Amounts recognized in consolidated balance sheets
Noncurrent liabilities		0
Amounts Recognized in Balance Sheet		0
Amounts recognized in balance sheet
Net loss		0
Total accumulated OCI (not adjusted for applicable tax)		$ 0
Weighted average assumptions used to determine benefit obligations
Discount rate		4.10%
Brewmatic Plan
Change in projected benefit obligation
Benefit obligation at the beginning of the year	121,752,000	$ 3,724,000
Interest cost	4,084,000	2,339,000
Actuarial (gain) loss	13,433,000	8,482,000
Benefits paid	(5,943,000)	(3,097,000)
Pension settlement	0	(21,286,000)
Other - Plan merger	0	131,590,000
Projected benefit obligation at the end of the year	133,326,000	121,752,000
Change in plan assets
Fair value of plan assets at the beginning of the year	75,411,000	3,719,000
Actual return on plan assets	3,382,000	9,325,000
Employer contributions	3,054,000	1,800,000
Benefits paid	(5,943,000)	(3,097,000)
Pension settlement	0	(22,100,000)
Other - Plan merger	0	85,764,000
Fair value of plan assets at the end of the year	75,904,000	75,411,000
Funded status at end of year (underfunded) overfunded	(57,422,000)	(46,341,000)
Amounts recognized in consolidated balance sheets
Noncurrent liabilities	(57,422,000)	(46,341,000)
Amounts Recognized in Balance Sheet	(57,422,000)	(46,341,000)
Amounts recognized in balance sheet
Net loss	62,830,000	50,080,000
Total accumulated OCI (not adjusted for applicable tax)	$ 62,830,000	$ 50,080,000
Weighted average assumptions used to determine benefit obligations
Discount rate	2.55%	3.45%
Hourly Employees’ Plan
Change in projected benefit obligation
Benefit obligation at the beginning of the year	$ 4,475,000	$ 4,040,000
Interest cost	152,000	161,000
Actuarial (gain) loss	561,000	349,000
Benefits paid	(102,000)	(75,000)
Pension settlement	0	0
Other - Plan merger	0	0
Projected benefit obligation at the end of the year	5,086,000	4,475,000
Change in plan assets
Fair value of plan assets at the beginning of the year	3,778,000	3,629,000
Actual return on plan assets	239,000	224,000
Employer contributions	0	0
Benefits paid	(102,000)	(75,000)
Pension settlement	0	0
Other - Plan merger	0	0
Fair value of plan assets at the end of the year	3,915,000	3,778,000
Funded status at end of year (underfunded) overfunded	(1,171,000)	(697,000)
Amounts recognized in consolidated balance sheets
Noncurrent liabilities	(1,171,000)	(697,000)
Amounts Recognized in Balance Sheet	(1,171,000)	(697,000)
Amounts recognized in balance sheet
Net loss	1,115,000	565,000
Total accumulated OCI (not adjusted for applicable tax)	$ 1,115,000	$ 565,000
Weighted average assumptions used to determine benefit obligations
Discount rate	2.55%	3.45%